New fault kinematics data within the Archinsk field located in the Nurol depression (south part of the West Siberian Basin) are obtained by structural analysis of the 3D seismic reflection data. Two stages of fault formation in the Mesozoic–Cenozoic period are distinguished. The first stage is characterized by a normal stress regime with a NE-trending minimum principal stress and corresponds to Triassic rifting. The second stage is characterized by Cenozoic reactivation of the pre-existing faults and the formation of new, predominantly strike-slip faults, with submeridionally and sublatitudinally trending minimum and maximum principal stresses, respectively.

中文翻译：

---

中新生代演化和 Nurol 凹陷（西南西西伯利亚盆地）的断层运动学

通过对 3D 地震反射数据进行结构分析，获得了位于 Nurol 凹陷（西西伯利亚盆地南部）的 Archinsk 油田内的新断层运动学数据。中新生代断裂形成的两个阶段是有区别的。第一阶段的特征是正常的应力状态，具有 NE 向的最小主应力，对应于三叠纪裂谷。第二阶段的特点是先存断层的新生代再活化和新的、主要是走滑断层的形成，分别具有最小和最大主应力的海底和亚横向趋势。